Search and replace substring

[V.Life]

I can't make the function Search and replace string work. I attached an image of the code and the string I receive. The function retrurns always 0 replacements.

I replace the substring with an identical substring because I only want to know if the substring is present in the whole string I receive and I can't find other useful functions.

Thank you

[Yamaeda]

Maybe you need to set Multiline to True

[Basjong53]

can you post your entire and exact input string? Because it works find here (I used a different but similar input to yours). Match Pattern also works if you want to try it.

[V.Life · Accepted solution]

I managed with Match Pattern